(October 1, 1997 through September 30, 1998) (Bove et al., 1998). Morphology
change calculations for the end of September indicate that active transport regions
were primarily located in the throat of the inlet, and in the direct path of the ebb jet
(Fig. 11). The channel extending from the jetty tips and across the ebb shoal eroded
along its western flank, reproducing the measured trend of westward channel
migration. Deposition took place updrift (east) of the channel. Small bar complexes
offshore of Tiana Beach were translated along the western barrier within the wave-
shadowed region of the ebb shoal.
Tiana Beach
Figure 11. Calculated morphology change at end of September 1997. Contours were
constructed at the 0.05 and 0.1 m intervals. Solid contours indicate zones of deposition and
dotted lines indicate regions of erosion.
Wave activity began to increase during the month of October from both the
southwest and southeast quadrants. Four significant events occurred in which wave
heights exceeded 2 and 3 m, and periods ranged from 9 to 12 sec. Two of the events
were from the southwest and resulted in longshore transport reversals. Active regions
of morphology change were located along the coast of the east and west barrier, and
in the inlet throat and channel (Fig. 11). Sediment was deposited along the bypass
bar, attachment point and at the seaward extent of the ebb jet. Patterns of
morphology change were similar to those calculated for August and September, but
with larger erosion and accretion signals.
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